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Custom Lithium Ultra Slim Lithium Batteries

SKU: CL-US-100AH

Lead times can vary. The average wait time is 2-3 weeks. Please contact us for an ETA before purchasing

$1,390.00
Amp Hours100
BracketsNo Brackets

Designed for 4WDs, canopy fitouts, caravans, RVs, and space-limited off-grid systems. Ideal for behind-seat, false-floor, and wall-mounted configurations.

1 x Custom Lithium Ultra Slim Battery (size selected)

1 x Quick start card

1 x Warranty certificate


100Ah: 55mm (H) x 300mm (W) x 490mm (L) — 14kg

200Ah: 60mm (H) x 373mm (W) x 580mm (L) — 22kg

280Ah / 310Ah: 82mm (H) x 373mm (W) x 580mm (L) — 25kg

400Ah / 450Ah: 115mm (H) x 373mm (W) x 580mm (L) — 38kg

550Ah / 620Ah: 150mm (H) x 373mm (W) x 580mm (L) — 58kg

Constructed from lightweight, durable aluminium for slimline applications Each unit includes Heltech BMS with active balancing for optimal safety Designed to be mounted behind seats, under floors, or in canopy walls Every battery is bench-tested and certified prior to dispatch

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Custom Lithium Ultra Slim Lithium Batteries

$1,390.00
Description

Maximise space without compromising performance with Custom Lithium’s Ultra Slim 12V LiFePO4 battery range. Purpose-built for tight installations in 4WDs, caravans, canopy walls and under false floors, this Australian-made lineup delivers exceptional output in a compact form.

Whether you’re powering induction cooktops, fridges, 12V accessories, tools or even Starlink, these batteries offer the high discharge performance you need for extended off-grid travel. 

Each Ultra Slim battery features A-grade automotive LiFePO4 cells and a rugged aluminium housing, paired with a high-current Heltech BMS and active cell balancer for reliable power delivery in extreme conditions.

FEATURES

Australian Made and tested

Space-saving ultra-slim design

High-discharge Heltech BMS

Premium A-grade LiFePO4 cells

Aluminium case with vibration insulation

Built for behind-seat and canopy installs

Compatible with 240V inverter use

FAQ's

Q: What makes the Ultra Slim range different?
A: It’s designed for maximum space savings while delivering high-output lithium performance, ideal for tight 4WD or canopy installs.

Q: Can I run induction cooktops or Starlink with this battery?
A: Yes. The larger capacity models like 280Ah and up can easily support higher draw items like cooktops, Starlink, and heavy-duty inverters.

Q: Are these batteries waterproof?
A: They are vibration and weather-resistant, but not IP-rated. We recommend installing them in protected areas or sealed compartments.

Q: What charger do I need?
A: A lithium-compatible DC-DC charger with a bulk charge of 14.2–14.6V and float of 13.4–13.6V. Victron, Enerdrive, and REDARC all have supported models.

Specifications

Battery Chemistry: LiFePO4

Capacity Options: 100Ah, 200Ah, 280Ah, 310Ah, 400Ah, 450Ah, 550Ah, 620Ah

Continuous Discharge: 180A–380A depending on model

Peak Discharge Protection: 700A–1800A

Charge Voltage:
14.2–14.6V

Float Voltage: 13.4–13.6V

Cutoff Voltage: 10.5V

Nominal Voltage: 12.8V

Charging Current: 50A–100A Standard | 100A–200A Max

Operating Temperature: –20°C to 60°C

Terminals: M8 (100Ah), M10 (200Ah and up)

Certifications: IEC-62619 Compliant

BMS: Heltech with active cell balancing

Enclosure: Slimline aluminium with vibration protection

Installation Information

Slimline form factor supports flexible mounting inside or outside canopies.

Mount vertically or horizontally using approved brackets.

Pair with a compatible lithium-profile DC-DC charger.

For in-vehicle installs, a vented enclosure is recommended for compliance and longevity.

Warranty Information


Covered by a 7-year manufacturer's warranty.

This includes bench testing and performance certification for every unit.

Warranty includes defects in materials or workmanship under standard use conditions.

PICKUP OR SHIPPING

Pickup: Available from Elevate Automotive (WA)

Shipping: Australia-wide shipping